Bad Client Service

Hi, I have logged a complaint not too long ago, I thought Vodacom had resolved my complaint, only to find they have invoiced me incorrectly once again. I have tried to follow up with their Call Centre but they are really of NO HELP at all. I found I relogged a Request on 10 Sep, After all my calling they have still not resolved my issue. I have been placed on a smart L without my approval and this is the 2nd month I need to fight to get a credit to my account. Everyone you speak to is not able to assist, they keep saying your request is being looked into but no one gets back to you, I have tried to escalate this issue and still no luck. I find Vodacom's client service in this regard really bad. This month I will place a stop order on my bank account as I cannot afford to be invoiced for something I did not request. This experience has really left a bad taste in my mouth, I am ready to cancel my contract with Vodacom and I will be informing people I know of my bad experience, I'm sure many people wont appreciate their finances to be messed with the way mine have been. I got extra data for my trouble but still they have the Ordacity to invoice me for data usage.